问题
I am getting a Network Error while calling my server(nodejs) API.
I have rechecked my localhost, server, and port. They are all working fine. I have also confirmed using POSTMAN and also ran the server on the web locally to fetch data.
I think I have also added the cors properly in my server.js file.
Want some help on this.
I have also tried with dummy API and they worked fine.
My imports from front-end
Here is LogCat
Response Header in Postman
ngrok status
回答1:
Hi I think you can try exposing your local host to the internet using a service like ngrok which will generate a url for you, and then try using the url to send requests instead of localhost:3000. Simply download and follow the instructions here: https://ngrok.com/docs
回答2:
It seems that you are having a problem in react native code, not in backend. That's why you are not getting any error in postman.
I am guessing that you are importing the dependencies is problematic way.
来源：https://stackoverflow.com/questions/62550990/network-error-react-native-express-nodejs-mongodb